Ice sawing machine



Jan- 9, 1940- J. DURAY y 2,186,012

ICB SWING MACHINE I K Filed im.` 17. 1938 2 sheets-sheet 1 J/Z rag INVENTOR ATTORN EYS Im 9, 1940- J. DuR'AY 2,186,012

' ICE sAwING MACHINE Filed oct. 17, 1938 2 sheets-sheet l2 IN ENTOR ATTO R N EYS Patented Jan. 9, 1940 UNITED STATES:

vPATENT *o1-Fics v 2,186,012V Ion sAWING MACHINE John Duray, Minto, N. Dak. Application october 17, 193s, serial No. 235,495 s anims. (o1. 26,2-1-31) I lVly invention 'relates to improvements in ice sawing machines and has as one of the principal objects thereof the provision of a machine of the above described character `so constructed and arranged as to be operable over an ice field for cutting said ice in such a way that it-rnay be divided up into cakes or blocks which can be more readily handled and packed. I f

' Another object of my invention is to provide a machine of the character described which is simple in construction, durable in use, efficient in operation and economical in manufacture.

Other objects and advantages will be apparent from the following description, appended claims and annexed drawings. i'

Referring to the drawings wherein like reference characters designate like parts throughout the several views:

Figure l -is a side elevation of my invention- Figure 2` is a top plan view thereof.

Figure 3 is a rear elevation of my invention.

Figure 4 is a detail sectional View taken on the line i-t of Figure 1. v

Figure 5 is a detail perspective view of the cross head. x

In practicing my invention I provide a` sled 5 comprising a pair of runners 6 secured in space-d relation by cross bars '1, the ends of the latter being secured in spaced recesses formed in the top faces of said runners. A longitudinally extending bed 3 is secured on the upper faces of the cross bars "I between the runners 6 and is provided, adjacent the front end ofthe sled, with a pair of longitudinally extending spaced guides 9 on which is slidably mounted a base I0 of an engine II of an ordinary construction and equipped with the usual drive shaft on whichis mounted for rotation therewith a drive pulley I2.

Secured on the top faces of the runners 6, adjacent the rear end of the sled, are a pair of spaced uprights I3, the upper ends of the latter being provided with bearings I4 through which is journaled a transversely extending shaft I5. Fixed on the shaft I5, between the bearings I4, is a driven` pulley v and i8 is a drive belt Il whereby said shaft I5 is driven by the engine II. Mounted. on the cross bars l, adjacent the front end of the sled, is a plate I3 provided with teeth for engagement with a spring pressed pawl mounted on a lever I9 pivoted to the plate. The lever I9 is pivotally l connected to the engine II by means of a connectinc rod 2D whereby upon adjustment of the lever relative to the plate, through the medium of the pawl and teeth, said engine is moved relaing iii and trained over the pulleys I2 right position by a spring tive to the guides Si to effect tightening or loosen- 'ofthe belt about'the pulleys I2 and I6 to rotate or preclude rotation of the shaft I5 respectively as desired.

The front end of the sled is provided with a pairfof handles 2l whereby said' `sled may be pulled over the 'surface of ice 22 to effect cutting thereof in` a manner hereinafter more fully set forth.

Subjacent the upper end thereof, one of the uprights I3 has pivoted thereto on the outer side face thereof the upper end of across head frame 23. The cross head, frame 23 is provided subjacent the upper end thereof with agrooved guide member 2t in which is slidably mounted offset portions 25 of a headZS. The guide member 24 l hassecured thereto, by means of screws, detachable plates 2l overlying the portions 25 ofthe head whereby to ymaintain the latter in reciprocal relation with the frame.

The upper end of a saw blade 28 is pivoted to the head 2E, adjacent the upper end thereof, by means of a pivot pin 29 threaded in said head and said saw blade extends an appreciable distance subjacent the adjacent runner 6 yfor engagement with the ice whereby to effect cutting of the latter upon reciprocation of the saw blade and forward movement o-f the sled. Mounted on the outer end of the shaft I5, adjacent the frame 23, is an eccentric disk 3D having pivoted thereto the upper end of an eccentric bar 3|, the lower end of which is pivotally connected to the pivotA A U-shaped guide 32 is attached to the head 26 below the pivot pin 29 and limits the forward pivoting movement of the saw blade and tends to hold said blade against lateral outward movement with relation to the frame. A keeper 33 is secured to the outer face of the runner adjacent the saw blade whereby said saw blade may be disposed thereon when not in use as clearly illustrated in dotted lines in Figure 1.

The movement of the frame 23 relative to the adjacent upright is limited by a pin 34 carried by said upright and operable in a slot 35 formed in the frame. The frame is normally held in up- 3I which is secured to the lower end of the frame and to the adjacent runner.

From the forego-ing it will be readily understood that the sled may be positioned on the surface of ice and the saw blade inserted .through said ice to effect cutting of the ice upon operation of the motor and propelling of the sled as heretofolre set forth. It is to be distinctly understood that various changes and modifications may be resorted to in the construction and arrangement of my invention without departing from the spirit thereof or scope of the appended claims.

What I claim is:

1. A device of the character described, comprising, a sled equipped with a pair of uprights, a shaft mounted on said uprights, a cross head framepivotally mounted on one of said uprights, a cross headslidably mounted in said frame, a saw blade pivoted to said cross head for reciprocation therewith and extending an appreciable distance below said sled for engagement with a body of ice to effect cutting of the latter upon reciprocation of said blade and forward movement of said sled, a guide member carried by said head and receiving said blade for maintaining the latter in ice cutting position during reciprocation of the blade in said ice cutting position, means connecting said shaft to said cross head for reciprocating the latter, and an engine mounted on said sled and connected to said shaft for rotating the latter.

2. A device of the character described, comprising, a sled equipped with a pair of uprights, a shaft mounted on said uprights, a cross head frame pivotally mounted on one of said uprights, a cross head slidably mounted in said frame, a saw blade pivoted to said cross head for reciprocation therewith and extending an appreciable distance below said sled for engagement with a body of ice to effect cutting of the latter upon reciprocation of said blade and forward movement of said sled, a guidey member carried by said head and receiving said blade for maintaining the latter in ice cutting position during reciprocation of the blade in said ice cutting position, means connecting said shaft to said cross head for reciprocating the latter,` an engine mounted on said sled and connected to said shaft for rotating the latter, and means carried on said sled and connected to said engine for adjusting the latter on said'sled to effect operation of said shaft.

3. A device of the character described, comprising, a sled equipped with a pair of uprights, a shaft mounted on said uprights, a cross head frame pivot-ally mounted on one of said uprights, a cross head slidably mounted in said frame, a. saw blade pivoted to said cross head `for reciprocation therewith and extending an appreciable distance below said sled for engagement with a body of ice to effect cutting of the latter upon reciprocation of said blade and forward movement of said sled, a guide member carried by said head and receiving said blade for maintaining the latter in ice cutting position during reciprocation of the blade in said ice cutting position, means connecting said shaft to said cross head for reciprocating the latter, an engine mounted on said sled and connected to said shaft for rotating the latter, and a spring connecting said sled to said frame for normally maintaining the latter in an upright position relative to said uprights and coacting with said guide member for yieldably maintaining said saw blade in engagement with said ice.

JOHN DURAY. 

